Table 7. Effect of age on the efficacy of the ketogenic diet.

Therapeutic time (month)	Age	Valid cases (%)	Invalid cases (%)	P value
3	≤1 year	34 (73.91)	12 (26.09)	0.436
	1–3 years	23 (82.14)	5 (17.86)
	>3 years	24 (85.71)	4 (14.29)
6	≤1 year	34 (77.27)	10 (22.73)	0.753
	1–3 years	22 (78.57)	6 (21.43)
	>3 years	22 (84.62)	4 (15.38)
9	≤1 year	33 (78.57)	9 (21.43)	0.526
	1–3 years	21 (77.78)	6 (22.22)
	>3 years	23 (88.46)	3 (11.54)
12	≤1 year	32 (78.05)	9 (21.95)	0.669
	1–3 years	21 (80.77)	5 (19.23)
	>3 years	20 (86.96)	3 (13.04)
18	≤1 year	30 (75.00)	10 (25.00)	0.897
	1–3 years	20 (80.00)	5 (20.00)
	>3 years	17 (77.27)	5 (22.73)
24	≤1 year	29 (76.32)	9 (23.68)	0.486
	1–3 years	18 (75.00)	6 (25.00)
	>3 years	16 (88.89)	2 (11.11)